<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear all,<div class=""><br class=""></div><div class="">I cannot understand how REGICA is involved in this discussion. In the pop_regica function, you should have the EOG channels (let’s say for example that the last two channels are the EOGs) and when in pop_regica you denote in the EOG channel field that the last two channels are EOG, then REGICA remove them from the dataset perform ICA and then it regresses out the EOGs. </div><div class=""><br class=""></div><div class="">Best</div><div class="">Manousos<br class=""><div class="">
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Klados, PhD</font></span><br class=""><span style="font-size: 13px; color: rgb(51, 51, 51); font-family: Helvetica, Arial, sans-serif;" class=""><b class="">Lecturer in Biomedical Engineering<br class=""></b></span><span style="font-size: 13px; color: rgb(51, 51, 51); font-family: Helvetica, Arial, sans-serif;" class="">School of Life & Health Sciences, Aston University</span><p style="font-size: 16px; margin-top: 5px;" class=""><span style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-size: 13px; line-height: normal; font-family: Arial; color: rgb(0, 114, 177);" class="">Phone: </span><a href="tel:+44 (0) 121 204 3740" data-mt-detrack-inspected="true" style="color: rgb(130, 130, 130); font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-size: 13px; line-height: normal; 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<br class=""><div><blockquote type="cite" class=""><div class="">Στις 6 Ιουλ 2017, 23:00, ο/η Tarik S Bel-Bahar <<a href="mailto:tarikbelbahar@gmail.com" class="">tarikbelbahar@gmail.com</a>> έγραψε:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="color:#333399">Hello Tyler, it's totally okay to not include the EOG in your channels that go into ICA. frontal eeg channels pick up eye-related artifacts just fine without EOG. You might also want to correlate the EOG channel activity with ICs that you think are should be associated with EOG. One can also easily google scholar a range of interesting articles that ICA but use/or/don't-use/or/correlate-with EOG. Overall, my understanding is whatever channels you do include for ICA. If you're hacking more details would be necessary to offer advice, though hacking is ony recommended for those who are already saavy with matlab and eeglab, and willing to use extra effort to build their on workarounds.</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Tue, Jul 4, 2017 at 4:24 AM, Tyler Grummett <span dir="ltr" class=""><<a href="mailto:tyler.grummett@flinders.edu.au" target="_blank" class="">tyler.grummett@flinders.edu.au</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear eeglabers,<br class="">
<br class="">
In light of the discussion that you should do an ICA on a dataset with EOG channels, assuming they are not bipolar referenced, I was wondering whether if it's potentially sensible to hack the code so that the EOG channels don't get taken out, and the EOG artefact correction is then performed on components that could potentially include EOG components. I originally hacked the code so that I could use my AMICA-produced ICs, I was wondering if I should continuing hacking and prevent it from removing EOG channels.<br class="">
<br class="">
I assume taking them out is done on purpose, so I'll gladly accept that you shouldn't leave them in for the EOG correction. I just thought I'd ask :)<br class="">
<br class="">
Regards,<br class="">
Tyler<br class="">
<br class="">
Sent from my iPhone<br class="">
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